Add updatable_media_stub to framework

The module framework is now a build-only library whose purpose is to
provide hidden APIs from the non-updatable part of the platform and APIs
from the modules. Merging updatable_media_stub to framework, like the
stub libraries from other modules.

Bug: N/A
Test: m
Change-Id: Ib627523aab44b7c41d27d70c6ae34cda5dc2e27c

Android.bp

@@ -467,6 +467,7 @@ java_library {
     installable: false, // this lib is a build-only library
     static_libs: [
         "framework-minus-apex",
+        "updatable_media_stubs",
         "framework-appsearch", // TODO(b/146218515): should be framework-appsearch-stubs
         "framework-sdkext-stubs-systemapi",
         // TODO(b/146167933): Use framework-statsd-stubs instead.